The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2009
Filed:
Nov. 02, 2006
Tsukasa Ohoka, Shiga, JP;
Tsukasa Ohoka, Shiga, JP;
NEC Electronics Corporatioon, Kawasaki, Kangawa, JP;
Abstract
In a constant voltage generating apparatus where an output circuit is controlled in accordance with a control voltage, a voltage detection signal generating circuit generates a voltage detection signal in accordance with a difference between an output voltage signal of the output circuit and a first reference signal. A current detection signal generating circuit generates a current detection signal in accordance with a difference between an output current signal of the output circuit and a second reference signal. A control current generating circuit generates a control current in accordance with the voltage detection signal and the current detection signal. A control current-to-control voltage converting circuit converts the control current into the control voltage.